Fleece,Polyester Imported Stays Warm All Night: Keeps little sleepers cozy all night. This toddler sleep sack with legs helps prevent kicked off blankets while soft fleece insulation maintains warmth for overnight comfort. Walkable Design for Active Toddlers: Designed for movement, this sleep sack walker allows toddlers to stand and walk before bedtime. The walkable sleep sack design works as a practical sleep bag walker for active toddlers. Safer Alternative to Loose Blankets: A wearable blanket that stays in place all night. This toddler sleeping sack with feet replaces loose bedding while the foot openings create a secure sleep sack walker toddlers can move in safely. Perfect for Growing Toddlers: Designed for growing toddlers, this toddler sleep sack with legs fits toddlers from 18 months to 4T and provides a comfortable toddler sleep suit solution for kids transitioning from baby sleep sacks. Soft Cozy Fleece Comfort: Ultra soft premium fleece creates a cozy toddler wearable blanket that helps maintain comfortable warmth throughout the night. This sleep sack with legs provides gentle comfort for everyday use.